The invention provides a vehicle body rear part structure and a vehicle. The vehicle body rear part structure is applied to a vehicle body with a C column and a D column; the vehicle body rear part structure comprises a wheel cover outer plate and a wheel cover inner plate positioned under the C column and the D column and connected together, and a damper mounting plate connected between the wheelcover outer plate and the wheel cover inner plate; the vehicle body rear part structure further comprises a C column force transfer part extending along the C column and connected between the C column and the wheel cover outer plate, and a D column force transfer part extending along the D column and connected between a side peripheral upper edge beam of the vehicle body and the wheel cover outerplate; a wheel cover inner plate force transfer part is fixedly arranged on the wheel cover inner plate; the wheel cover inner plate force transfer part is reversely Y-shaped; the upper free end is connected with the D column; and two lower free ends are arranged front and back in the length direction of the vehicle and connected with floor longitudinal beam of the vehicle body. The vehicle bodyrear part structure can realize effective transfer of force thereon to improve the NVH performance of the vehicle.